Rising yields make Treasuries vulnerable.
Rogoff argues interest rates are biased upward because the old consensus that rates would keep falling has reversed, while fast growth, falling labor share, populism, and shock risks could push yields higher. He says the US debt level is already difficult and a shock would leave the government unable to cut rates or print money if markets are pushing yields up, making long-duration Treasuries vulnerable.
AI faces eventual collapse, timing uncertain.
Rogoff says there will eventually be a spectacular collapse in AI, but timing is extremely difficult, as Greenspan and Schiller found when they called a stock market collapse far too early. He explicitly says this does not mean investors should take money out of AI, so the setup is a risk to monitor rather than an immediate exit.